word study crossword puzzle

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Across
  1. 4. in math we have to do_______
  2. 6. come before something in date
  3. 8. a bad computer virus
  4. 10. in math we learned the ________ of the circle
Down
  1. 1. mr mclaughlin gave us a ____ after the unit
  2. 2. situated around or inhabiting one of the earths poles
  3. 3. evil in nature or effect
  4. 5. relating to a course of study undertaken after completing an undergraduate degree
  5. 7. the time or date twice a year when the sun crosses the celestial equator
  6. 9. the third syllable in a word